Cup holder



FIG. 1 is a front elevational view of a cup holder showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side elevational view thereof; and

FIG. 6 is a cross-section taken along line 6--6 of FIG. 2. 

The ornamental design for a cup holder, as shown and described. 